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Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -1/8 Pilot Diameter - 90° Inclusive Angle - 1/4 Body Diameter
| Pilot Diameter | 1/8 |
| Inclusive Angle | 90 |
| Body Diameter | 1/4 |
| Shank Diameter | 3/16 |
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Description
The Robet Charles Imperial Piloted Countersink – 3 Flute Integral Pilot Straight Shank is designed for accurate and consistent countersinking of pre-drilled holes.With a precision ground integral pilot, it ensures perfect alignment and chatter-free cutting, delivering a clean, professional finish every time.
The 3-flute design provides smooth cutting action, improved stability, and efficient swarf evacuation, making it ideal for use on a range of materials including steel, aluminium, and plastics. Manufactured to high quality standards, this countersink is suitable for both workshop and production environments where precision and reliability are essential.
- Integral pilot for precise alignment: The precision-ground pilot centers the countersink in pre-drilled holes, ensuring accurate starts, reducing chatter, and delivering a consistent, clean chamfer every time.
- Three-flute design for smooth cutting: The 3-flute geometry provides stable cutting action, efficient swarf evacuation, and a reliable finish on steel, aluminum, and plastics.
- Straight shank with exact sizing: 1/8" pilot diameter and 1/4" body diameter with a 90° included angle ensure compatibility with standard holders and deliver repeatable countersinks across materials.
This countersink helps you improve workflow by delivering repeatable, professional chamfers with minimal rework, across common engineering and fabrication materials. The integrated pilot simplifies setup, reduces the risk of walk-out, and the robust design withstands busy shop environments, making it a dependable choice for both small workshops and production lines.
Part Numbers
- Protool Part Number
- 5809
- Brand
- Robert Charles
- Category
- Countersinks
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Robet Charles Imperial Piloted Countersinks - 3 Flutes Integral Pilot Straight Shank
View full collection →You are viewing 5809. Click any other SKU to view its full details.
| Product SKU | Pilot Diameter | Inclusive Angle | Body Diameter | Shank Diameter | Overall Length | Shank Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 5801 | 3/32 | 90 | 3/16 | 3/16 | 2.1/2 | 1.3/4 | £26.86 | 2-3 days | |
| 5805 | 3/32 | 90 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £27.65 | 2-3 days | |
| 5802 | 3/32 | 100 | 3/16 | 3/16 | 2.1/2 | 1.3/4 | £26.86 | 2-3 days | |
| 5806 | 3/32 | 100 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £30.02 | 2-3 days | |
| 5804 | 3/32 | 100 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5803 | 3/32 | 120 | 3/16 | 3/16 | 2.1/2 | 1.3/4 | £26.86 | 2-3 days | |
| 5807 | 3/32 | 120 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £27.65 | 2-3 days | |
| 5809 Viewing | 1/8 | 90 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £27.65 | 2-3 days | |
| 5816 | 1/8 | 90 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £28.44 | 2-3 days | |
| 5825 | 1/8 | 90 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5810 | 1/8 | 100 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £27.65 | 2-3 days | |
| 5817 | 1/8 | 100 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £29.23 | 2-3 days | |
| 5811 | 1/8 | 100 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5812 | 1/8 | 120 | 1/4 | 3/16 | 2.1/2 | 1.3/4 | £27.65 | 2-3 days | |
| 5818 | 1/8 | 120 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £28.44 | 2-3 days | |
| 5826 | 1/8 | 120 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5820 | 5/32 | 90 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £28.44 | 2-3 days | |
| 5827 | 5/32 | 90 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5821 | 5/32 | 100 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £28.44 | 2-3 days | |
| 5823 | 5/32 | 100 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5822 | 5/32 | 120 | 5/16 | 3/16 | 2.1/2 | 1.3/4 | £28.44 | 2-3 days | |
| 5828 | 5/32 | 120 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5830 | 3/16 | 90 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5831 | 3/16 | 100 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5832 | 3/16 | 120 | 3/8 | 3/16 | 2.1/2 | 1.3/4 | £30.81 | 2-3 days | |
| 5834 | 3/16 | 120 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5835 | 7/32 | 90 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5837 | 7/32 | 100 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5838 | 7/32 | 120 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5840 | 1/4 | 90 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5843 | 1/4 | 90 | 1/2 | 3/16 | 2.1/2 | 1.3/4 | £36.34 | 2-3 days | |
| 5841 | 1/4 | 100 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5839 | 1/4 | 100 | 1/2 | 3/16 | 2.1/2 | 1.3/4 | £36.34 | 2-3 days | |
| 5842 | 1/4 | 120 | 7/16 | 3/16 | 2.1/2 | 1.3/4 | £33.97 | 2-3 days | |
| 5844 | 1/4 | 120 | 1/2 | 3/16 | 2.1/2 | 1.3/4 | £36.34 | 2-3 days |
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